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Damm [24]
3 years ago
13

Without using a calculator, determine the number of real zeros of the function

Mathematics
1 answer:
Natalija [7]3 years ago
4 0

Answer:

1, -6

Step-by-step explanation:

Since there are alike numbers, add them together.

4x+x= 5x

Now the function is: f(x)= x^{2}+5x-6

The function is in  a^{2}+bx+c form.

So find the factors of a x c = b.

Factors of -6(a) that fits (b)5 is (-1,6).

Then you just factor it:

f(x)= x^{2}+5x-6

(x-1)(x+6)

x-1= 0  x+6=0

 +1 +1     -6  -6

x=1      x=-6

Those are the real zeroes: 1, -6

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So what would the answer be to 2/3 x 6/7
Serga [27]

Answer:

4/7

Step-by-step explanation:

Given function:

  • 2/3·6/7

Cross multiply:

  • 6=2 and 3=1

Rename:

  • 2/1·2/7

Multiply the terms:

  • 2/1·2/7=4/7

Therefore, 2/3·6/7 is 4/7..

8 0
3 years ago
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Which property of addiction does 8+0=8 illustrate
Rus_ich [418]

Answer:

The statement represents the IDENTITY PROPERTY OF ADDITION.

Step-by-step explanation:

Here, the given expression is  8 + 0 = 8

IDENTITY ELEMENT :  Identity element is a special type of element in a given  set of system, such that any number remains UNALTERED if operated with the identity element.

⇒  a + X  = X  for, a   ≡  IDENTITY ELEMENT

Now,  8  +   0  =   8

Comparing it with the above equation , we get

0 ≡ IDENTITY ELEMENT in the given Binary operation of Addition.

Hence,  the statement represent the IDENTITY PROPERTY OF ADDITION.

4 0
3 years ago
Estimate 58% of 121 by using 10%
Basile [38]
58% is about equal to 60%, or 6 times 10%. 10% of 121 is 12.1.
12.1 * 6 = 72.6
To take this further, 58% is 2% less than 60%, or 2 times 1%. 1% of 121 is 1.21.
72.6  - (1.21 * 2) = 72.6 - 2.42 = 70.18
7 0
3 years ago
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Find x❤❤<br><br> I Will mark brainliest who answer first
andre [41]

Value of x is 35°

Step-by-step explanation:

  • Step 1: Since the line segment is a perpendicular bisector, the angle formed is equal to 90° and two triangles are also formed.

Find x using the property of triangles that sum of angles of a triangle is 180°

⇒ x° + 55° + 90° = 180°

⇒ x° + 145° = 180°

∴ x = 180 - 145 = 35°

8 0
3 years ago
X2 + x - 132 = 0<br> what is the formula
geniusboy [140]
3x-132=0
you need to add all like terms first then answer the equation
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4 years ago
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